Motorad MO338 Engine Oil Filter Cap

Engine Oil Filter Cap Overview

The Motorad MO338 engine oil filter cap is a specific-fit replacement built for applications that require a screw-on plastic cap with an integrated seal. It is made for Mercedes-Benz, Freightliner, and Jeep diesel and gasoline platforms listed below, including Sprinter, GL, ML, R, E, and Grand Cherokee applications.

With OEM-approved materials and standard replacement construction, this cap is intended to restore proper filter housing closure and sealing performance. The MO338 is identified by part number MO338 and is engineered to meet or exceed OEM quality standards.

Key Features

• Specific-fit engine oil filter cap for listed applications
• Plastic construction with black finish
• Screw-on attachment type for secure installation
• Round design with indicator markings
• Rubber gasket or seal included
• Manufactured to OEM quality standards in ISO TS16949 facilities

Detailed Product Information

The Motorad MO338 is a standard replacement oil filter cap designed around the dimensions and thread specification required by the listed vehicles. Its plastic body, round shape, and screw-on design support proper fitment at the filter housing, while the included rubber seal helps maintain a reliable closure. For buyers searching for a Mercedes-Benz Sprinter 2500 oil filter cap, Mercedes-Benz ML350 oil filter cap, or Freightliner Sprinter 3500 oil filter cap, this part number MO338 matches the specified applications.

This part cross-references Dorman - HELP 917-062 and Genuine 6421800038 for the same application.

Common Problems This Part Can Address

• Cracked or damaged oil filter cap housing
• Oil seepage at the filter cap seal area
• Improper closure from worn threads or seal surfaces
• Need for a direct replacement cap on listed Mercedes-Benz and Sprinter applications
• Loss of proper filter housing sealing after service

Installation Notes and Tips

Verify the thread diameter, cap dimensions, and application match before installation. Inspect the sealing surface and replace the cap if the housing threads or seal area show damage. Confirm the part number MO338 against the vehicle listing before service.

Quality Assurance

Motorad states that this cap is manufactured with OEM-approved materials and built to meet or exceed OEM quality standards at ISO TS16949 manufacturing facilities.